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elgin pallet fork

tracker

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I could use some ideas on was to line up a pallet fork on an elgin grade 102 18 size pocket watch.I can't seem to get the end of the fork to extend out into the lower plate and line up withe balance without pulling the pallet fork pivots out of the jewels. Are there any secrets to this? Thanks.
 

musicguy

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Moving thread to watch repair.



Rob
 

Rick Hufnagel

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Are you putting it together "upside down"?

You have to put the upper plate down, place all of the wheels and pallet fork in their pivot holes, and slide the pillar plate over the center staff.

First line up the 4TH pivot. The one the second hand sits on.

After that slides through the pivot hole, wiggle the center staff again to make sure it's seated.

Then the third pivot goes next.
Then the pallet fork
Lastly the escape wheel.

If you do it "upside down" in that order it should go together easily.
 
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Dave Coatsworth

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A second method, which I was originally taught, is to use a bit of Rodico to hold the pallet fork to the top plate during assembly. Then you can assemble the movement right-side-up.
 

Randy Beamer

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potentclip.jpg

David's suggestion is easy and works great. I use a "potence" clip, made from a section of old mainspring to hold the pallet fork in place. This is the one use. My father made at the Bulova school in the '40's...
 

musicguy

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A watchmaker friend of mine Merlin Meyer made one of these and sent it to me.
He "kind of" taught me some watchmaking over the phone.
(same as Randy's above)


Rob
 

Rick Hufnagel

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Im glad you got it!

I don't know, pretty much every watch i work on is a full plate Elgin or Hampden, and I never need potence clips or rodico and it goes together quick and easy 99% of the time. Whats the advantage of putting it together with the top plate up? Just curious.
 

Rob P.

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I could use some ideas on was to line up a pallet fork on an elgin grade 102 18 size pocket watch.I can't seem to get the end of the fork to extend out into the lower plate and line up withe balance without pulling the pallet fork pivots out of the jewels. Are there any secrets to this? Thanks.
As was said, assemble upside down. Put all the gears into position on the top plate with the end of the pallet fork in the potence (the can), carefully drop the main plate over them so that the seconds pinion goes into its jewel as the plate goes on.

From there it's wiggle and tease the remaining pivots into position. Do not invert until they're all in place and you can hold the plates together between your fingers.
 

Skutt50

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I agree with the upside down method.

This method makes the center wheel and seconds wheel very easy to fit and leaves only three pivots to wiggle in place in comparison with the "normal" method where five pivots needs to be wiggled........

Graham has in another thread described how he holds the plates together by using a pair of rubber bands. This gives a mild tension on the plates but they do not jump loose "on their own".
 

gmorse

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Hi tracker,

Graham has in another thread described how he holds the plates together by using a pair of rubber bands. This gives a mild tension on the plates but they do not jump loose "on their own"
It's here.

Regards,

Graham
 

GeneJockey

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I do it upside down, too. It's always satisfying when the last pivot goes in the hole and the pillar plate drops into place.
 
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